| Lat / long: | 31.84293, -109.95346 |
| Tertiary: | Copper, Gold, Lead, Silver, Zinc |
| Operation type: | Underground |
| Development status: | Past Producer |
| First production started: | 1921 |
| MRDS | M800321 |
| MAS | 40030210 |
| DEP | 10234065 |
| Reference | {Deposit:: KEITH, S. B., 1973, ARIZ BUR MINES BULL 187, P. 69.}{Deposit:: PHELPS-DODGE CORP., 1979, UNPUB. DATA ON MIDDLEMARCH PROJECT}{Deposit:: 451, AVAIL. AT WESTERN EXPLORATION OFC, DOUGLAS, AZ.}{Deposit:: CHATMAN, M. L., 1993, USBM OFR MLA 30-93, P. 36, D118-119.} |
| Reporter | Intermountain Field Operations Center (IFOC) |